package io;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
public class CopyDemo2 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("111.jpg");
        FileOutputStream fos = new FileOutputStream("111_1.jpg");
        long start = System.currentTimeMillis();
        byte[] data = new byte[1024*10];
        int d;
        while ((d=fis.read(data))!=-1){
            fos.write(data,0,d);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕,耗时:"+(end-start)+"毫秒");
        fis.close();
        fos.close();
    }
}